X0306 4 2014-06-27 0001269021 PORTOLA PHARMACEUTICALS INC PTLA 0001250409 BIRD JEFFREY W 755 PAGE MILL ROAD, SUITE A-200 PALO ALTO CA 94304-1005 1 Stock Option (Right to Buy) 29.1900 2014-06-27 4 A 0 10000.0000 0.0000 A 2024-06-27 Common Stock 10000.0000 10000.0000 D The Option shares shall vest as follows: 1/12th of the shares subject to such option shall vest each month after June 27, 2014, subject to the Reporting Person's Continuous Service (as defined in the Issuer's Equity Incentive Plan) as of each such date. The Reporting Person shares pecuniary interest in these shares with other individuals pursuant to a contractual relationship. The Reporting Person disclaims beneficial ownership in these shares except as to the Reporting Person's pecuniary interest in these shares. /s/ Jeffrey W. Bird 2014-07-01